package com.mstanford.movie.controller;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.mstanford.movie.utils.DataUtil;

public class UrlRequestFilter implements Filter {

	public void init(FilterConfig filterConfig) throws ServletException {}

	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {

		HttpServletRequest req = (HttpServletRequest)request;
		HttpServletResponse res = (HttpServletResponse)response;

		Object obj = req.getSession().getAttribute("member");
		
		if(DataUtil.isEmpty(obj)) {
			res.sendRedirect("login.jsp");
			return;
		}
		
		chain.doFilter(request, response);
	}
	
	public void destroy() {}
}